internalization vs acquisition

internalization and acquisition both are nouns.

Word	Noun	Adjective	Verb	Adverb
internalization	Yes	No	No	No
acquisition	Yes	No	No	No

As nouns, acquisition is a hypernym of internalization; that is, acquisition is a word with a broader meaning than internalization:

internalization: learning (of values or attitudes etc.) that is incorporated within yourself
acquisition: the cognitive process of acquiring skill or knowledge

Other hypernyms of internalization include learning.

internalization (noun)	acquisition (noun)
learning (of values or attitudes etc.) that is incorporated within yourself	the act of contracting or assuming or acquiring possession of something
	an ability that has been acquired by training
	the cognitive process of acquiring skill or knowledge
	something acquired